The news emerged in the early hours of this morning (Thursday) via social media.
A post on the Oldham Police (GMP) Twitter feed read: "Officers from the GMP Transport Unit, GMP Dogs, Firearms, NPAS North West and divisional officers have responded to robberies at Failsworth Metrolink Stop.
"Three juvenile males have now been arrested.
"If anyone has anymore info, please call quoting log number 3349-030123."
